[Sheriff] Disable flaky IFrameDynamicMixedContentInPWAOpenInChrome

TBR=alancutter

Bug: 1087382
Change-Id: I4777fab9196321e993688947e604b53f3afe3d4d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2218279Reviewed-by: Jan Wilken Dörrie <jdoerrie@chromium.org>
Commit-Queue: Jan Wilken Dörrie <jdoerrie@chromium.org>
Cr-Commit-Position: refs/heads/master@{#772671}

chrome/browser/ui/web_applications/pwa_mixed_content_browsertest.cc

@@ -4,6 +4,7 @@
 
 #include "base/strings/stringprintf.h"
 #include "base/test/scoped_feature_list.h"
+#include "build/build_config.h"
 #include "chrome/app/chrome_command_ids.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_commands.h"
@@ -233,8 +234,16 @@ IN_PROC_BROWSER_TEST_P(
 
 // Tests that iframes can't dynamically load mixed content in a regular browser
 // tab, when the iframe was created in a PWA window.
+// https://crbug.com/1087382: Flaky on Windows, CrOS and ASAN
+#if defined(OS_WIN) || defined(OS_CHROMEOS) || defined(ADDRESS_SANITIZER)
+#define MAYBE_IFrameDynamicMixedContentInPWAOpenInChrome \
+  DISABLED_IFrameDynamicMixedContentInPWAOpenInChrome
+#else
+#define MAYBE_IFrameDynamicMixedContentInPWAOpenInChrome \
+  IFrameDynamicMixedContentInPWAOpenInChrome
+#endif
 IN_PROC_BROWSER_TEST_P(PWAMixedContentBrowserTestWithAutoupgradesDisabled,
-                       IFrameDynamicMixedContentInPWAOpenInChrome) {
+                       MAYBE_IFrameDynamicMixedContentInPWAOpenInChrome) {
   ASSERT_TRUE(embedded_test_server()->Start());
 
   const GURL app_url = GetSecureIFrameAppURL();